I don't know what headlight I recommend. I tend to light the American manufactures such as Cygolite.When you pay extra, you get a battery that is well tested and is likely to hold a charge when using the light from day to day and from year to year. Cheap lights from aliexpress might use inferior batteries. There was one model they had for a while which had a beam shape that complied with German law (stvzo). I really like it, and it was inexpensive. I bought a 8 or 9 of them, and 3 of them had batteries that stopped taking a charge, proving my theory that cheap lights have inferior batteries.

I recommend you look at reviews and browse the reports you see in the bikeforums section on lights and electronics.

I do like the way Cygolite products are made but the beam shapes are round rather than stvzo-compliant. I just noticed that Lezyne makes stvzo-compliant lights. They are expensive but an investment in your safety probably pays off.

I prefer a headlight that is powered by a dynamo rather than a battery. I don't have to charge it. I had to buy a dynamo hub and build the front wheel. I'm lucky I'm able to do that, and I enjoy it. Busch and Müller make headlights made for dynamos. It's a German company so of course the beam is stvzo-compliant. It's actually not a powerful light but I've received comments on how strong it seems. That's because, through optical engineering, the beam is focused. There are Dutch companies that make lights like these, too, such as Spanninga.

Years ago, I bought Busch & Müller headlights from https://xxcycle.com in France. Good prices. They may still sell them.